Emerson M150 Mechanical Heat/Cool Thermostat for Single-Stage Systems

The White-Rodgers M150 single-stage, heat/cool thermostat is an easy-to-operate thermostat with reliable performance. This mercury-free mechanical thermostat features rugged snap-action contacts, adjustable heat anticipator and bimetal thermometer. This thermostat is compatible with single-stage heating and cooling (gas, oil, electric), and heat pump systems without auxiliary heat, as well as millivolt and 3-wire zone valve applications.